System and method of controlling pattern skin lighting device for vehicle

Abstract

A method of controlling a pattern skin lighting device for a vehicle is provided. The method includes generating a plurality of random numbers and accumulating the number of continuous turn-on times for each lightening cell in an arrangement of the lightening cells configuring a pattern skin lighting device. Additionally, the method includes selecting a turn-on target lightening cell, lightening cells having an accumulative value of the number of continuous turn-on times that is a predetermined reference value or less, among the lightening cells corresponding to the generated random number, and turning on a light emitting element of the selected turn-on target lightening cell.

What is claimed is: 
     
       1. A method of controlling a pattern skin lighting device for a vehicle, comprising:
 generating, by a controller, a plurality of random numbers to be assigned to each lighting cell in an arrangement of lighting cells configuring a pattern skin lighting device for a vehicle; 
 accumulating, by the controller, a number of continuous turn-on times for each lightening cell; 
 selecting, by the controller, as a turn-on target lightening cell, lightening cells having an accumulative value of the number of continuous turn-on times that is a predetermined reference value or less, among the lightening cells corresponding to the generated random number; and 
 turning on, by the controller, a light emitting element of the selected turn-on target lightening cell; 
 wherein the lightening cell having the accumulative value of the number of continuous turn-on times that exceeds the reference value among the lightening cells corresponding to the generated random number is excluded from the turn-on target lightening cell, and the accumulative value of the number of continuous turn-on times of the lightening cell excluded from the turn-on target lightening cell is initialized to zero. 
 
     
     
       2. The method according to  claim 1 , further comprising:
 generating, by the controller, a number of random numbers less than the number of entire lightening cells of the pattern skin lighting device within a predetermined number range. 
 
     
     
       3. The method according to  claim 1 , further comprising:
 setting, by the controller, the reference value within a range of a natural number greater than 1. 
 
     
     
       4. The method according to  claim 1 , further comprising:
 driving, by the controller, a cell cover of the selected turn-on target lightening cell. 
 
     
     
       5. The method according to  claim 4 , further comprising:
 operating, by the controller, the light emitting element and the cell cover of the selected turn-on target lightening cell only during a predetermined reference time, 
 wherein all steps from the generating of the random number are repeatedly performed.